Don't bother buying this second-rate translation. Alphonso Lingis more honestly conveys the complexity of Levinas' language in "Collected Philosophical Papers".
The introductory essay is, like much of Richard Cohen's work, nasty and unpleasant. Cohen really seems to be striving to convert Levinas' ethics into the moralistic hatred of Nietzsche's man of ressentiment. Somebody please make him stop.
All five of the essays collected and (re)translated in this volume, _Humanism of the Other_, have previously appeared as chapters in Levinas' _Collected Philosophical Papers_, edited and translated by Alphonso Lingis (Duquesne Univ Press, 1998: ISBN#:0820703060). That is not to say that the essays here collected are no good. The new translation is self-avowedly more accurate to Levinas' French than the Lingis translation.
With the above proviso in mind, the five essays collected and published as _Humanism of the Other_ are wonderful representations of the radicality of Levinas' notions of ethics. Of particular is the essay "No Identity." Students and scholars of Levinas in particular and Continental ethics in general are well served by being or becoming familiar with this work.
The introductory essay by Richard Cohen is very clear and worthy of a serious reading in its own right. Cohen is a top-notch Levinas scholar and translator.